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Washers（Type：Seal Washer）

Metal Washers
We have a lineup of nearly all washers circulating in the market, including square or wavy types, as well as flat (round) washers and spring washers.
They are mainly available in small boxes and packs, but we sell many items individually. For customers who are price sensitive, purchasing in small boxes is recommended.
Contact us if you cannot find the desired size.
[Materials]
Iron (steel SCM), stainless steel (SUS304, SUS410, SUS316L), titanium, brass, and many others
[Surface Processing]
None, ferrosoferric oxide coating, electroless nickel plating, trivalent chromate, trivalent black, trivalent white, unichrome plating, chromate plating, chrome plating, nickel plating, anodized, polished, painted, and others
[Nominal Screw Diameter] M (mm), imperial (inch), others
[Thickness] 0.1 to 30 mm

14 items

: 30; 45; 60

Days to Ship	All Same day 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less 11 Day(s) or Less

Sealing Washer S1 (Space Saving)

KEEPER

[Materials] Steel, Stainless steel
[Inner diameter d (mm)] 2.8 3.8 4.8 5.8 7.8 9.8 11.8 13.8 15.8 17.8 19.8 21.75 23.75 24.75 27.75 29.75 35.75 37.75 41.7 47.7
[Nominal Thread (M)] 2.6 3 4 5 6 8 10 12 14 16 18 20 22 24 25 28 30 36 38 42 48
[Thickness t (mm)] 1.2 1.6 2
[Outer diameter (mm)] 10 11 12 13 16 18

Standard Price:	SGD 1.13-
Days to Ship:	4 Day(s) or more

Sealing Washer (NBR) - SWS/SWS-F

Sealing Washer (NBR) - SWS/SWS-F【1-10 Pieces Per Package】

NABEYA BI-TECH

This stainless steel sealing washer features rubber packaging. Prevents leakages of air and liquid from bolt installations. Suitable for use with hydraulic and pneumatic equipment.

CAD ：: 2D / 3D

Standard Price:	SGD 3.31-
Days to Ship:	Same day or more

Sealing Washer

Sealing Washer【1-20 Pieces Per Package】

KEEPER

[Nominal Thread (M)] 8 12.5 14 25 28 31.5 45 56 63 71 90 100 125 140 160 180 200 225 250
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.
[Materials] Steel, Stainless steel
[Nominal Thread (M)] 2.6 3 4 5 6 8 10 12 14 16 18 20 22 24 25 28 30 36 38 42 48
[Thickness t (mm)] 1.2 1.6 2
[Outer diameter (mm)] 10 11 12 13 16 18

Standard Price:	SGD 0.90-
Days to Ship:	4 Day(s) or more

Bonded Washer (Black Rubber)

OPG

[Features]
· Strong adhesion due to vulcanization bonding of metal and rubber. (Washer with rubber = The rubber part was not pasted later)
· As the washer and thread sections are sealed with rubber when tightening, the sealing effect is excellent.
· High anti-loosening effect due to rubber's vibration absorption performance.
· Sound absorption effect and insulation effect by the rubber contacting the tightening object. Also, does not hurt the bearing surface.
[Type (usage)]: For fluids.
[Type] Sealing washer.
[Material] Stainless steel.
[Surface treatment] None.
[Unit of purchase] Per pcs (able to purchase from one piece).
[Surface treatment (detail)] None.
[Inner diameter d (mm)] 4 5 6 7 9 11 12.7 17.
[Nominal designation of thread (M)] 3 4 5 6 8 10 12 16.
[Thickness t (mm)] 3.5 3.7 4.1 4.3.
[Outer diameter D (mm)] 9.5 12.5 14 16 19 22.

Standard Price:	SGD 0.24-
Days to Ship:	4 Day(s) or more

Washer: Ogee, Curved, Flat, Deep Curve

Washer: Ogee, Curved, Flat, Deep Curve【200 Pieces Per Package】

YAMAHIRO

[Materials] Iron, stainless steel
[Type] Ogee, curved, flat, deep curve

Standard Price:	SGD 20.51-
Days to Ship:	7 Day(s) or more

Pierce-Bonded Washer (Gray Rubber)

Pierce-Bonded Washer (Gray Rubber)【1-1,000 Pieces Per Package】

KYUHI SEIRA

[Type (application)] For fluids
[Type] Sealing Washer
[Surface treatment] None
[Surface treatment](Details) none
[Materials] Steel, Stainless steel
[Inner diameter d (mm)] 4 5 6
[Nominal Thread (M)] 4 5 6
[Thickness t (mm)] 3 3.5
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.
[Outer diameter (mm)] 10 14

Standard Price:	SGD 0.23-
Days to Ship:	4 Day(s) or more

AZ Washer (Gray Rubber)

AZ Washer (Gray Rubber)【1-1,000 Pieces Per Package】

YAMAHIRO

Standard Price:	SGD 0.26-
Days to Ship:	4 Day(s) or more

Packing Washer PM (NBR)

OHTOMO SS

Used for many precision products and designed in a way that the packing is less likely to protrude.

Standard Price:	SGD 1.02-
Days to Ship:	4 Day(s) or more

Packing Washer SM (NBR)

OHTOMO SS

For prevention of leak of gas and liquid from the bald tightened part. It has anti-vibration and anti-noise effects because the metal and rubber packing do not resonate with vibration.

Standard Price:	SGD 2.35-
Days to Ship:	5 Day(s) or more

Packing Washer PM (Fluorine Rubber)

OHTOMO SS

[Type (application)] Loosening prevention
[Type] Sealing Washer
[Materials] Stainless steel
[Surface treatment] None
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc)
[Materials] Stainless steel SUS304
[Surface treatment](Details) none
[Inner diameter d (mm)] 3 4 5 6 8 10 12 20
[Nominal Thread (M)] 3 4 5 6 8 10

Standard Price:	SGD 2.79-
Days to Ship:	5 Day(s) or more

Bondwell Washer, Black Rubber

SUNCO

Effective in preventing rainwater from infiltrating the screw hole. Washer with sealing rubber that combines excellent watertightness and long-term corrosion resistance.

CAD ：: 2D / 3D

Standard Price:	SGD 0.11-
Days to Ship:	4 Day(s) or more

Bondwell Washer, Gray Rubber

Bondwell Washer, Gray Rubber【1-500 Pieces Per Package】

SUNCO

Effective in preventing rainwater from invading the screw hole. Washer with sealing rubber that combines excellent watertightness and long-term corrosion resistance.

CAD ：: 2D / 3D

Standard Price:	SGD 0.11-
Days to Ship:	4 Day(s) or more

Bondwell Washer for Plates (Gray Rubber)

SUNCO

Multi-functional product that offers excellent sealing properties, as well as vibration proofing, loosening prevention, sound absorption, seating surface damage prevention, and insulation performance.

CAD ：: 2D / 3D

Standard Price:	SGD 0.30
Days to Ship:	4 Day(s) or more

Seal Washer (SUS304) Rubber Part: NBR

YAHATA

The stainless steel squeezed washer is fitted with a packing, so that it does not easily move when tightened, being press-bonded to the thread of the bolt or sealing.
Used in motor, pump, automobile, oil and air pressure machines, industrial machines, bolts and other devices because it prevents gas and liquid leakage from bolt tightening parts.
Used in automatic control devices, air-conditioning equipment, all types of industrial plants, marine development devices, etc.
Fits into small boxes. When placing an order, please enter the number of pieces in the quantity column.

Standard Price:	SGD 5.30-
Days to Ship:	9 Day(s) or more


Brand
Product Series
CAD
Days to Ship
Material
Surface Treatment
Inner Dia. d(mm)
I.D. d(inch)
Nominal of Thread (M)
Outer Diameter D(inch)
Type
Type (Application)
Sales Unit
Thickness t(mm)
Thickness t(inch)
Type Spring Washers
Material: Stainless Steel
Surface Treatment (Detailed)
Nominal of Thread (inch)
Material Steel
Type Toothed Washer


Brand	KEEPER	NABEYA BI-TECH	KEEPER	OPG	YAMAHIRO	KYUHI SEIRA	YAMAHIRO	OHTOMO SS	OHTOMO SS	OHTOMO SS	SUNCO	SUNCO	SUNCO	YAHATA
Product Series	Sealing Washer S1 (Space Saving)	Sealing Washer (NBR) - SWS/SWS-F【1-10 Pieces Per Package】	Sealing Washer【1-20 Pieces Per Package】	Bonded Washer (Black Rubber)	Washer: Ogee, Curved, Flat, Deep Curve【200 Pieces Per Package】	Pierce-Bonded Washer (Gray Rubber)【1-1,000 Pieces Per Package】	AZ Washer (Gray Rubber)【1-1,000 Pieces Per Package】	Packing Washer PM (NBR)	Packing Washer SM (NBR)	Packing Washer PM (Fluorine Rubber)	Bondwell Washer, Black Rubber	Bondwell Washer, Gray Rubber【1-500 Pieces Per Package】	Bondwell Washer for Plates (Gray Rubber)	Seal Washer (SUS304) Rubber Part: NBR
CAD		2D / 3D									2D / 3D	2D / 3D	2D / 3D
Days to Ship	4 Day(s) or more	Same day or more	4 Day(s) or more	4 Day(s) or more	7 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	5 Day(s) or more	5 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	9 Day(s) or more
Material	Steel / Stainless Steel	Stainless Steel	Steel / Stainless Steel	Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Stainless Steel	Stainless Steel	Stainless Steel	Steel / Stainless Steel	Steel / Stainless Steel	Stainless Steel	Stainless Steel
Surface Treatment	Not Provided	Not Provided	Not Provided	Not Provided	-	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	-	-	-	Not Provided
Inner Dia. d(mm)	3.8 ～ 29.75	3.2 ～ 18.8	2.4 ～ 41.7	4 ～ 17	6.5	4 ～ 6	4 ～ 6	3.2 ～ 23	10 ～ 24	3 ～ 20	4 ～ 6	4 ～ 6	4	3.2 ～ 18.8
I.D. d(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Nominal of Thread (M)	4 ～ 30	3 ～ 16	2.6 ～ 42	3 ～ 16	6	4 ～ 6	4 ～ 6	3 ～ 20	10 ～ 24	3 ～ 20	-	-	-	3 ～ 16
Outer Diameter D(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Type	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer	Seal Washer
Type (Application)	Washer for Fluid	Washer with Threadlocker Adhesive	Washer for Fluid	Washer for Fluid	-	Washer for Fluid	Washer for Fluid	Washer with Threadlocker Adhesive	Washer with Threadlocker Adhesive	Washer with Threadlocker Adhesive	-	-	-	Washer for Fluid
Sales Unit	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) ～ Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.
Thickness t(mm)	1.2 ～ 1.6	2.1 ～ 5.3	1.2 ～ 2	3.5 ～ 4.3	1.2	3 ～ 3.5	3 ～ 3.5	2.1 ～ 6.3	-	-	3	3	3.2	2.1 ～ 5.3
Thickness t(inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Type Spring Washers	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Material: Stainless Steel	-	SUS304	-	-	SUS304	-	-	SUS304	SUS304	SUS304	SUS304	SUS304	SUS304	SUS304
Surface Treatment (Detailed)	Not Provided	Not Provided	Not Provided	Not Provided	Tin Plating / Bright Chrome Plating	Not Provided	Not Provided	Not Provided	Not Provided	Not Provided	-	-	-	Not Provided
Nominal of Thread (inch)	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Material Steel	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Type Toothed Washer	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Configure

Specification/Dimensions

Material
- Steel
- Stainless Steel
- Titanium Class 2
- Aluminum
- Brass
- Phosphor Bronze
- Titanium Class 1
- Nickel Base Alloy
Clear

Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parkerizing
- Anodize
- Dacrotizing
- Polishing
- Painting, Coating
- Silver/Copper/Tin Plating
- Temper Color
- Passivated
Clear

Inner Dia. d(mm)
0.114

0.125

0.141

0.156

0.167

0.172

0.193

0.203

0.252

0.281

0.314

0.344

0.377

0.391

1.05

1.1

1.3

1.5

1.7

1.75

1.8

2.1

2.2

2.25

2.3

2.35

2.4

2.5

2.6

2.7

2.8

2.9

3

3.1

3.15

3.2

3.3

3.4

3.5

3.55

3.6

3.7

3.8

3.9

4

4.1

4.2

4.25

4.3

4.4

4.5

4.7

4.8

5

5.1

5.2

5.25

5.3

5.36

5.4

5.45

5.5

5.8

6

6.1

6.2

6.3

6.4

6.5

6.6

6.8

7

7.1

7.2

7.4

7.5

7.8

8

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

9

9.1

9.3

9.4

9.6

9.8

10

10.2

10.3

10.5

10.6

10.7

10.8

11

11.2

11.4

11.6

11.8

12

12.2

12.5

12.6

12.7

13

13.2

13.3

13.5

13.8

14

14.2

14.3

14.5

14.6

15

15.2

15.5

15.8

15.9

16

16.2

16.5

16.7

16.9

17

17.5

17.7

17.8

18

18.2

18.3

18.7

18.8

18.9

19

19.5

19.7

19.8

20

20.2

20.7

20.9

21

21.4

21.5

21.7

21.75

22

22.1

22.5

22.9

23

23.2

23.4

23.5

23.75

24

24.5

24.75

25

25.2

25.3

25.4

25.5

26

26.1

26.4

26.6

26.75

27

27.5

27.75

28

28.2

28.4

28.5

29

29.3

29.75

29.8

30

30.1

30.4

30.5

31

31.2

31.4

31.5

31.9

32

32.5

33

33.5

33.7

33.9

34

34.3

34.4

34.5

35

35.75

35.8

36

36.5

37

37.4

37.5

37.75

38

38.5

39

39.5

39.8

40

40.4

40.5

40.6

41

41.7

42

42.5

43

43.2

44

45

45.8

46

47

47.2

47.3

47.5

48

49

49.6

50

51

51.4

51.5

51.8

52

53

53.6

54

54.3

55

56

57

57.3

58

59.1

61.3

61.9

62

63.1

64.2

65

66

67.1

69

69.5

70

71.1

74

75

75.1

78

79.1

79.3

79.7

83.1

87.5

88.9

95.8

99

108.3

112.4
Drawing

Clear

I.D. d(inch)
0.109

0.141

0.148

0.227

0.291

0.355

0.400

0.416

0.450

0.512

0.573

0.827

0.894

0.952

1.077

1.202

1.327

1.640
Drawing

Clear

Nominal of Thread (M)
0.5

1

1.2

1.4

1.6

1.7

2

2.3

2.5

2.6

3

3.5

4

4.5

5

5.1

6

7

8

9

10

11

12

13

13.5

14

14.5

15

16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

33

34

36

37

38

39

41

42

43

44

45

45.1

45.2

45.3

46

47

48

50

51

52

54

55

55.1

55.2

55.3

56

60

63

64

65.1

65.2

65.5

66

68

70

72

76

80

80.3

85

85.2

85.3

90

95

105

105.1

105.2

105.3

110

110.3

110.4

110.5

110.6

115

120

125

125.1

125.2

125.4

125.5

130

130.2

135.2

135.3

135.4

135.5

135.6

140.3

140.4

145.4

145.5

150.2

150.6

170.2

170.3

170.4

170.5

170.6

180.4

180.5

180.6

210.3

210.4

210.5

210.6

220.5

230.5

235.5

240.5

240.6

255.6

260.4

260.5

330.6
Clear

Outer Diameter D(inch)
0.25

0.270

0.377

0.645

0.698

0.760

0.776

0.869

0.885

1.260

1.459

1.770

2.020

2.250

2.520

2.770

3.270
Drawing

Clear

Type
- Flat Washer
- Spring Washer
- Toothed Washer (Toothed Lock Washer)
- Rosette Washer
- Tab Washer - One-Tabbed / Two-Tabbed
- Nord-Lock Washer
- Tapered Washer
- Spherical Washer
- Ornamental Washer for Ornamental Screws
- Hooked Washer for Jig
- Split Washer for Jig
- Square Washer
- Flat Washer with Cover
- Seal Washer
- Pawl Washer
- Washer for Corrugated Sheet
- Fall Prevention and loosening Prevention Spring
Images

Clear

Type (Application)
- Flat Washer
- Spring Washer
- Special Shaped Washer
- Washer with Threadlocker Adhesive
- Washer for Fluid
Clear

Sales Unit
Low Quantity (Available beginning with 1 pc.)

Box, Pkg.
Clear

Thickness t(mm)
0.031

0.05

0.059

0.1

0.15

0.2

0.25

0.29

0.3

0.4

0.45

0.5

0.55

0.6

0.7

0.8

0.9

1

1.1

1.2

1.25

1.3

1.4

1.5

1.6

1.75

1.8

1.9

2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

3

3.2

3.3

3.4

3.45

3.5

3.55

3.6

3.7

3.8

3.9

4

4.1

4.2

4.3

4.5

4.6

4.7

4.8

5

5.1

5.2

5.3

5.4

5.5

5.6

5.8

5.9

6

6.2

6.3

6.4

6.6

6.8

7

7.1

7.2

7.5

7.9

8

8.2

8.3

8.7

9

9.1

9.3

9.5

10

11

11.1

11.2

12

14

15

16

17

18

21

22

23

27

30

32

45
Drawing

Clear

Thickness t(inch)
0.031

0.042

0.044

0.045

0.055

0.056

0.067

0.073

0.088

0.109

0.115

0.125

0.135

0.219
Drawing

Clear

Type Spring Washers
- Standard
- Disc Spring
- Wave
- Serrated Conical Disc Spring
- Bent
Details

Clear

Material: Stainless Steel
254SMO

SUS302

SUS303

SUS304

SUS310S

SUS316

SUS316L

SUS329J4L

Stainless Steel
Clear

Surface Treatment (Detailed)
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Black Nickel Plating
- Chrome Plating
- Parkerizing
- Black Anodize
- Dacrotizing
- Barrel, Passivated
- Special Chemical Grinding
- GeoMet Coating
- Baked Paint
- Seizure-Against Coating
- Copper Plating
- Tin Plating
- Lafre
- Black Paint
- Temper Color
- Passivated
Clear

Nominal of Thread (inch)
1

1 1/2

1 1/4

1 1/8

1/2

1 3/8

1/4

2

No. 2

3/4

3/8

No. 4

5/8

5/16

No. 6

7/8

7/16

No. 8

9/16

No. 10

No. 12
Clear

Material Steel
SUM22L

S25C

S45C

S50C

S55C

S65C

SS400

Carbon Steel

SCM Steel

SPCC

SPHC

SWRH

Spring Steel
Clear

Type Toothed Washer
- Internal Teeth Type
- External Teeth Type
- Star
- Internal External Teeth Type
Images

Clear

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Washers（Type：Seal Washer）

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